Publication Date:
2019
Description:
〈span〉In response to induced earthquakes associated with conventional gas production in the Groningen gas field in the Netherlands, several networks of seismic monitoring instruments have been installed in the region (〈a href="https://pubs.geoscienceworld.org/srl#rf5"〉Dost 〈span〉et al.〈/span〉, 2017〈/a〉). The recordings recovered from these networks have been of fundamental importance to the development of ground‐motion prediction models that underpin hazard and risk modeling to inform decision making regarding mitigation measures (〈a href="https://pubs.geoscienceworld.org/srl#rf10"〉van Elk 〈span〉et al.〈/span〉, 2019〈/a〉). In late 2018, it was discovered that the surface accelerographs of the G‐network had been installed with a calibration error such that the majority of the instruments were recording half of the correct ground‐motion amplitudes. The error was swiftly corrected via the website of Royal Netherlands Meteorological Institute (KNMI), which operates the networks. The calibration error explains, for example, the relatively low amplitudes observed in some of the KNMI network recordings in figure 3 of 〈a href="https://pubs.geoscienceworld.org/srl#rf1"〉Bommer, Dost, 〈span〉et al.〈/span〉 (2017)〈/a〉.〈/span〉
Print ISSN:
0895-0695
Electronic ISSN:
1938-2057
Topics:
Geosciences
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